xxviii



(No Model.)

E. ORLING. ELECTRIC GAS LIGHTER.

No. 544,514. Patented Aug. 13, 1895.

UNITED STATES PATENT OFFICE.

ERIK ORLING, OF STOCKHOLM, SWEDEN, ASSIGNOR TO THE AKTIEBOLAGET INVENTOR, OF SAME PLACE.

ELECTRIC ens-I lel-ITEI-i'.

SPECIFICATION forming part of Letters Patent No. 544,514, dated August 13, 1895.

Application filed Iebrnary',

1895. Serial No. 537,325. (No modeLl Patented in Sweden February 23, 1893, No. 4,542; in Germany March 28, 1893, No. 72,775; in Belgium June 3,1893, No. 104,923; in Switzerland August 25,1893, No. 7,449; in

Italy September 30, 1893,

xxvIII, 34,792, LxvIII, 214; In Engine November 2e,

1898, No. 22,858; in France December 22, 1893,170. 224,311, and in Portugal August 16, 1894, No. 1,901.

To all/Z whom t may con/cern.'

Be it known that I, ERIK ORLING, a subject of the King of Sweden and Norway, residing at Stockholm, in the Kingdom of Sweden,

5 have invented certain new and useful Improvements in Electric Gas-Lighters, (for which patents have been granted to me in Sweden, No. 4,542, dated February 23, 1893;

in Germany,No. 72,775, datedMarch 28,1893;

1o in England, No. 22,858, dated November 28, 1893; in France, additional patent to No. 224,311, dated December 22, 1893; in Switzerland, No. 7,449, dated August 25, 1893; in Portugal,No. 1,901, dated August 16, 1894;

T5 in Italy, Vol. XXVIH, No. 34,792, and Vol.' LXVIII, No. 214, dated September 30, 1893, and in Belgium, No. 104,923, dated June 3, 1893,) of which the following is a specification.

My invention relates to the class of autozo matic gas-lighting devices wherein when a `circuit is closed through an electromagnet in a circuit including a generator the magnet turns on the gas and produces an ignitingspark.

The invention, which is especially well adapted to incandescent gas-burners, of which the Welsbach is a type, has for its main object to provide a means for regulating the precise degree of rotation of the gascock,whereby it may be stopped at the exact point desired both in opening and closing. This enables the cock to be mounted as loosely as the necessity for a tight joint will permit, thereby insuring its operation with a 3 5 light current.

Another feature of the invention is the means employed for obtaining pure gas to supply the auxiliary igniting-jet when applied to an incandescent burner supplied 4o with a mixture of gas and air. This is important, as it is found more difiicult to ignite with a spark an auxiliary jet of mixed gas and air than a jet of pure gas direct from the gas-service pipe.

My invention will be fully described hereinafter, with reference to the accompanying drawings, and its -novel features carefully defined in the claims.

In the said drawings, Figure 1 is an elevation of an incandescent burner to which my 5o lighter is applied. Some parts of the gure are in section to better illustrate the construction. Fig. 2 is a side elevation of the mechanism for operating the gascock, representing the parts in the position they occupy when the electromagnet A is excited. Fig. 3 is a View from the left in Fig. 2 of the ratchet mechanism for operating the gaseoek. Fig. 4 is a view illustrating a modified form of the stop-pawl of the ratchet.

V represents the gas-supply pipe on which the burner is mounted. About this pipe, or embracing it, is acasingn of any kind to contain the electromagnet and other appliances for operating the gasscock. This casing is closed at top and bottom, respectively, by plates c and p and has in it a supportingplate I. Set in the upper end of the pipe V is a tubular plug b, on which is screwed the nipple h. This nipple rests on and clamps 7o down a ring a, which embraces the plug b, but has in it an annular chamber to receive gas from the bore in said plug through radial passages or apertures d in. thelatter. Screwed or otherwise fixed on the nipple h is the mixing-chamber g, on which is mounted the cage to be heated to incandescence. Air enters the mixing-chamber g above the nipple h at apertures m. On the chamber g are mounted .the chimney-gallery W and chimney X.

S is the auxiliary-gas-jet tube, which receives gas from the annular chamber in the ring e through a radial outlet t', controlled by a screw 7c.

A is the electromagnet, mounted at its upper end on the plate I in the casing n and having its coils in circuit with a generator Z and spark-coil z. These latter are represented diagrammatically. On the projecting extremity of the rotary gas-cock O (seen in 9o Fig. 3) is fixed a ratchet-wheel D.

B is the armature of the magnet A. This armature is pivoted at of( and has on it an upright arm F carrying a pawl E, which en gages the teeth of the ratchet-wheel D and rotates it intermittently in one direction when the yarmature vibrates. When the circuit is closed through the magnet A and the armature is attracted, as seen in Fig. 2, the pawl E rotates the ratehetwheel to the extent of one tooth, and the movement of the wheel is strictly limited by a stop device, which I will now describe. On thearmature is an upright arm G, which is bent laterali as seen in Fig. 3, and has at its upper end a pin G. This arm is so set that the pin G takes over or just above a tooth on the ratchet-Wheel when the armature is attracted and forms a positive stop to prevent the advance of the wheel (and gas-cock) beyond a certain limit. The pin G moves in a curve which corresponds very nearly with that of the back of the ratchet-tooth, and so is enabled to play closely to the tooth in the vibratory movements of the armature. To prevent back rotation of the ratchet-wheel when the pawl is retracted, a back-stop spring-paul His employed. This device is merely a long leaf-spring secured at one end to the plate I, its free end curving over and down and engagingthe tooth next in front of the pai'lE. In its forward movement the pawl E takes under and lifts the pawl Il. Indeed, this latter serves as a spring t'or the pawl E. In lieu ofthe baclnstop pawl l-I a spring-pawl Il', as shown in Fig. 4, may be used; or, indeed, any known form of backstop pawi can be employed.

I will now enplain how'the spark for igniting the auxiliary gas-jet is produced. Near the tip of the gas-jet tube S is situated a contact-pin N inthe circuit, and on this pin rests normally the curved tip of a sliding metal rod L, which is mounted in a sheath-like guide on the casingn,'and is prevented from turning axially by an arm Q fixed at one end to the rod L and sliding at the other end on an upright rod R in the casing. The curved tip of the rod L is held down upon the contact-pin N 'with agentle pressureby a light eoil-spring O. The lower extremity of the rod L is arranged directly over the upper end ot a tracker-pin M, which plays loosely in guidesthrough the space between the magnet-bobbins, its lower end .resting on the armature. The rod L is in and t'orms a part ofthe electric circuit, and when the armature B is attracted thepin M lifts said rod, breaks the circuit at the pin N, and thus produces a spark which ignites the gas of the auxiliary jet.

The drawings only show one ot the bobbins of the electroinagnet; but it will be under stood that there are two bobbins, as usual.

I do not limit myself to the exactmechanical construction herein shown, as this may be varied to some extent without departing materially from my invention.

The bend in the arm G, Fig. 3, enables this arm to be slightly elongated or shortened for purposes of adjustment of the pin G', as will be understood.

Having thus described my invention, I claim- 1. In an electric gas-lighting device, the combination with the gas-cock, of the wheel D thereon, provided with long teeth having curved backs, the electro-magnet, ture B, pivoted at ctx, a pawlarm rigidly fixed tothe armature and bearing a pawl which engages the teeth of the wheel D, the said pawl, adapted to rotate the wheel by impulses when the armature vibrates,an arm G, rigidly fixed to the armature and bearing a pin which engages the curved back ot a tooth ot' the wheel D when the armature is attracted and limits the rotation of said wheel, the curve ot` the back of the teeth in said wheel D being of such form that at the locking point the curve of the tooth coincides substantially with the path of the locking pin, substantially as set forth.

2. The combination with an incandescent gas-burner, having' a mixing chamber with inlets for gas and air thereto, ot' an auxiliary gas-jet tube S, connected at its receiving end with the gas-inlet pipe of the burner, whereby it receives pure gas unmixed with air, and an automatic, electric spark-producing device, substantially as described for igniting the gas of said auxiliary jet, as set forth.

8. The combination with the apertured mixing chamber g, of the nipple 72, secured therein, the chambered plug b, screwed into the nipple 7L at its outer end and adapted to be secured to the gas supply pipe at its other end, said plug having radial gas-passages d, the chambered ring a, embracing the plug Z1 and adapted to receive gas therefrom, the auxiliary jet-tube S, communicating with the gas-chamber within the ring a, and adapted to receive gas th ercfrom, and a spark-produc ing electrical device adapted to ignite the gas issuing from the tube S, substantially as set forth.

4. The combination with the gas-supply pipe, and the casing n, mounted thereon and having top and bottom plates c and p and an inner plate I, of theelectro-magnet mounted on the said plate I, within the casing, its armature B, the tracker-pin M, resting on the armature, the electrode N, mounted on the plate c,the sliding rod L, mounted in a guide on the plate c, and adapted to be lifted by the tracker-pin when the armature is attracted, the electro-magnet, the electrode N, and the rod L being in the same circuit, and ages-jet arranged adjacent to the point where the tip of the rod L is in contact with the electrode N, substantially as and for the purposes set forth.

In witness whereof I have hereunto signed my name in the presence ot' two suliscribing witnesses.

ERIK ORLING.

Witnesses:

ERNST SvANQvIs'r, CARL P. GnnnLr..

IOC

IIO 

